Setting up port builds on Azure using master branch of macports

[Blair Zajac]

Why Azure?

> On Aug 1, 2019, at 2:01 AM, Mojca Miklavec <mojca at macports.org> wrote:
> 
> Hi,
> 
> Is anyone willing to set up one Azure build instance running macports
> master when building the ports?
> 
> This could help us spot any potential issues with our code in the
> master branch in the future.
> 
> Thank you,
>    Mojca
>